<div class="row">
  <x-alert title="不可关闭" type="success" hideClose> </x-alert>
  <x-alert title="自定义关闭内容" type="info" closeText="知道了"> </x-alert>
  <x-alert title="关闭事件" type="warning" (close)="close()"> </x-alert>
  <x-alert [title]="titleTpl" type="success" showIcon duration="10000" content="秒后关闭"></x-alert>
      <ng-template #titleTpl> <x-countdown [value]="deadline" format="ss:SSS"></x-countdown></ng-template>
</div>
